A general process for testing the feasibility of applying alternative mathematical or statistical models to the solution of a practical problem is presented and flowcharted. The system is used to compare five models for test equating: (1) anchor test equating using classical test theory; (2) anchor test equating using the one-parameter logistic…

The failure of educational research to fully allow for limitations in methodology when drawing conclusions is faulted. In addition to this, a failure on the part of the media--educational and other--to fully publicize these limitations is also criticized. Methodological shortcomings of the 1977-78 American Institutes of Research (AIR) study of…

The implications of a mathematical model of test scores are explored where the data are limited to a random sample of items without replacement from an indefinitely large population or item domain in which items are scored either zero or one. The purpose is to obtain an unbiased estimate of a student's proportion of items correct in the item…

Selected data from the Commission on Human Resources data base are reported for two major groups that have been underrepresented in doctoral education in the past: minorities and women. A wide selection of tabulations of data on doctorate holders by sex and racial/ethnic group membership is presented. Characteristics of minority and women Ph.D.…

The principal uses of statistics in library planning may be illustrated by examples from the state of Illinois. State law specifies that the Illinois State Library compile and publish statistics on libraries. State agencies also play an important and expanding role in this effort. The state library now compiles statistics on all types of…

A project was designed to develop and test a library of cassette audiotapes for improving the technical skills of educational researchers. Fourteen outstanding researchers from diverse fields were identified, and a short instructional tape was prepared by each. Subjects of the tapes included instructional objectives for intellectual skills,…

A study tested a resampling methodology (bootstrap simulation) by examining the effects of class size and student motivation on students' ratings of teaching effectiveness. Results suggest that evaluations based on student ratings should look at more than class averages, and that class size and student motivation affect overall ratings. Examples…

Provides a short BASIC program, RANVAR, which generates random variates for various theoretical probability distributions. The seven variates include: uniform, exponential, normal, binomial, Poisson, Pascal, and triangular. (MVL)

Maintains that few statistical representations are as tenuous as public opinion. Maintains that social studies students need to be taught to analyze statistical data carefully. Presents and discusses four guidelines for students reviewing statistical information. (CFR)

A study of job satisfaction at a college registrar's office investigated overall job satisfaction, physical working environment, motivational culture, and worker needs. Findings included significant differences in satisfaction between registration and admissions units. Recommendations for improved sampling, choice of variables, and research design…

Background: Speaking rate has implications for both clinical practice and an understanding of normal and disordered communication processes. Fundamental information on speaking rate is required by the clinician for the appropriate management of those disorders with disturbances of rate or those in which rate modification strategies are applied.…

The National Longitudinal Transition Study (NLTS) of Special Education Students provides ongoing information regarding the transition of youth with disabilities from secondary school to early adulthood. The sample for the study, which began with a 1987 survey (Wave 1), involved more than 8,000 youth from the national population of secondary…

The National Longitudinal Transition Study (NLTS) of Special Education Students provides ongoing information to the special education community regarding the transition of youth with disabilities from secondary school to early adulthood. The sample for the study, which began with a 1987 survey (Wave 1), involves more than 8,000 youth from the…

The Integrated Postsecondary Education Data System (IPEDS) of the National Center for Education Statistics collects data from all sections of postsecondary education. For less-than-two-year institutions, the IPEDS collects data on fall enrollment, completions (earned awards and certificates), etc., from all public institutions in that category and…

Effect sizes have been increasingly emphasized in research as more researchers have recognized that: (1) all parametric analyses (t-tests, analyses of variance, etc.) are correlational; (2) effect sizes have played an important role in meta-analytic work; and (3) statistical significance testing is limited in its capacity to inform scientific…